It might be easy to assume that all mains power supplies are multiples of 11 when North America uses 110V and Europe uses 220V. Despite those numbers, it's actually not quite true. Europe has now moved to 230V from 220V and UK has moved from 240V to 230V to harmonise the power supply across the whole of Europe.
North America has a voltage that varies between 110V and 120V depending on the supplier.
In some less developed countries, the mains power supply is whatever happens to arrive. A notable example is that of a small Eastern European town - its 220V power supply was normally closer to 175V and would fluctuate wildly during the day.
They are the infinitely many multiples of 990.
88 and all its multiples
11,22,33,44,55,66,77,88,99 thanks:)
11
The COMMON multiples of 11 require at least one other number with which the multiple is COMMON. The COMMON multiples will be multiples of 11. The multiples of 11 between 1 and 100 are {11, 22, 33, 44, 55, 66, 77, 88, 99}, thus the COMMON multiples of 11 [with other numbers] wil be one, or more of this set.
due to the form factor .as the form factor of sine wave is 1.1 so, we use its multiples .
The common multiples of 11 and 4 are 88, and 4.
462 and all the multiples of 462.
11,22,33,44,55,66,77,88,99,110,
they are infinite.
34.5, 69, 115, 161, 230, 345, 500kV are all common transmission (and distribution) voltages. They aren't all multiples of 11.Additional CommentI think that the questioner is British because, in the UK, most transmission and distribution voltages are multiples of 11. These are 11 kV, 33 kV, (66 kV*), and 275 kV. The exception is the highest transmission voltage of 400 kV.(*66 kV is less common these days)
They are the infinitely many multiples of 990.
Since both 11 and 13 are prime numbers, the LCM of these 2 number is 11 * 13 = 143. All multiples of 143 are multiples of 11 and 13 as well
Numbers that both 44 and 11 divide evenly into. Since 44 is a multiple of 11, then all multiples of 44 are also multiples of 11. 44, 2x44, 3x44 etc 44, 88, 132 etc
All sinusoidal AC voltages are multiples of 1.1. This is due to the form factor, which is the ratio of the quadratic mean value of the voltage with the average voltage, which is pi/2√2=1.1 (approximately). It also provides the most economic means of constructing step up/down transformers.AnswerIn the UK, 33 kV (along with 66 kV) is considered to be a primary distribution voltage level, whereas 11 kV is secondary distribution voltage level. Incidentally, the correct symbol for 'kilovolt' is 'kV', not 'kv'.
multiples of 11 11,22,33,44,55,,66,77,88,99 multiples of 15 15,30,45,60,75,90
88 and all its multiples